Air conveyer.



No`.66,2,574. Patented Nov. 27, i900.

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AIR CDNVEYER (Application filed July 14. 1900.) l (lo Nudel.) l 2 Sheets-Sheet I` E C Ji' l E ,B i v IU w .Y I A 13 Vl5 IIIA' A o N d Y R A G c M L .L 4f 7 5I: 2 6 6 AIR GONVEYE'?.y

{Applicationvled July 14,I 1900.) l

(No Model.)

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UNITED. 'STATES PATENT OFFICE.

EUGENE'L. MCGARY, OF PITTSBURG, PENNSYLVANIA.

AIR oom/EVER.

SPECIFICATION forming part of Letters Patent No. 662,574, dated November 27, 1900.

Application filed July 14, 1900.

T @ZZ wtontz' may concern/ Be it known that I, EUGENE L'MCGARY, a citizen of the United States, residing in the city of Pittsburg, county of Allegheny, and State of Pennsylvania, have invent-ed certain new and useful Improvements in Conveyers for Material by Atmospheric Action, (usually termed Air-Conveyers,) whereof the following is a specification, reference being had to the accompanying drawings.

The underlying principle and` mode of operation of'my invention is similar to that of the process set forth in Letters Patent of the United States No. 545,013, dated August 20, 1895, and the` features of improvement are intended to afford means for localizing the air-blast, so as to limit the discharge as far as possible to a given region of eiciency, and, furthermore, to provide a guide for the material which is being conveyed.

In the accompanying drawings, Figure l is a transverse View through a conveyer embodying my invention. Fig. 2 is a top or plan f view thereof with one of the top plates removed to show the construction. Fig. 3.is a vertical longitudinal section through the table or top portion of the conveyer, and Fig. 4. is

a transverse section through the table of a conveyer embodying the invention in a modiiied form. y Referring to the type of invention which is shown in Figs. l, 2, and 3, A represents the conduit of the conveyor, whose area of crosss'ection is of coursev proportioned to the total area of discharge in the manner which is well` understood. Said conduit is supplied with an air-blast under pressure from any convenient source, which, however, it is not deemed necessary to indicate in the drawings. The table or top ofthe conveyer comprises a bedplate B, conveniently formed'of contiguous sections bolted together and having air-slits b, preferablyinclined, as shown, in the direction of thetransit of material. The length ofsaid slits4 correspondswith the maximum width of efficient surface desired in the conveyer; but as in many instances it may not be desired to utilize a conveying-path of such extreme widththe extension of said slits beyoud the required path wouldgf course, be

senti No.' 23,578. (Nt man.)

unproductive of anyt useful result and would clined, as shown at c c', so as to form a trough with shallow flaring sides, which are adapted to guide material passing between the same. Means for adjustment of said strips are also provided,consisting,I preferably,of bolts D D', whose Iscrew-nuts are mounted in countersunk socketsy E E', formed in the upper surface of the plates. into slots TF F', formed in the table-top B, the lower'portions of said slots being undercutor enlarged laterally, as ihdicated'at ff', so that the bolt-heads CZ d may engage beneath the edges of the slots. The coveringstrips may thus be shifted inward or outward with relation to the slits b. Thus the region Said bolts extend down.

of air-discharge may be' limited' to any desired Width by setting one or both of the adjustable covering-strips in the appropriate` general'arrangement and construction of the parts are similar to that hereinbefore described; but I form a longitudinal rib B' centrally along the slotted portion of the table. Said rib may be integralwith the table itself vor maybe made separate'land attached thereto. YIf the rib is integral with the table, the slit b may cut through the rib, as is the case in Fig. .4, where the section is taken through one of the slits. If the rib-.is formed by a separate piece, it may be continuous. rThe latter construction as the advantage of eecting a further eco omy of the blast. The edect thereof is ,to subdivide the path ofthe .travel of material into two channels, the central rib B forming an intermediate guide whichdirects the material as indicated in th`e figure.

Having thus described my invention, I de- Asire to have it understood that I do notV limit myself to the use of a pair of covering-strips,

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since some of the resulte of the invention may be attained by means of one only.

I elam- Y 4 l. In an air eonveyer, enmpiieing a conduit and a table having an a'izpneeage formed therethrough, the combination, with said table, of a covering-strip running longltudi nelly with said table, but adj ne able laterally with -relation to the, air-passages thereof 5 and means foi' securing said eti-ip, substantially as described.

2. In an air eonveyei, com pi'ieng a conduit and a table havin g airn passages formed therethrough, the combination, with eaid table, of a pair ot covering-strips running longitndi nally with said table, and adjustable laterally with relation to the ainpassages thereof; and

means for securing said strips, substantially as described. 'A l In an air eonveyer, comprising a conduit and a table havingaair-passages formed therethrough, the combination, with said table, of a pair of covering-Strips running longitudinally with said table, and adjustable laterally with relation to the air-passages thereof; means for securing said strips; and a guiderib running longitudinally with' said table and between the proximate edges of said strips, Substantially as described.

EUGENE L. MCGARY.

Vtfitnesses:

MORRIS BAKER, W. l KEYSER. 

